Collapsible box.



J. W. WEISS COLLAPSIBLE BOX.

APPLICATION FILED MAR.3, 1914.

1,132,293., Patented Mar.16,1915.

WITNESSES: J: l/Vl/E/VTOR WZ'MM JOSEPH W. WEISS, OF BALTIMORE, MARYLAND.

COLLAPSIBLE BOX.

. To all whom it may concern:

Be it known that I, Josnrn W. Wmss, a citizen of the United States, and a resident of Baltimore,in the State of Maryland, have invented certain new and useful Improvements in CollapsibleBoxes, of which the following is a specification.

This invention relates to collapsible boxes, particularly of this character which are reinforced to increase their strength to withstand impact and rough handling.

In my prior Patent No. 1,063,845, I have described and claimed a box made of fibrous material which is reinforced by a fold formed of the body of the material which projects outward from the sides and spaces them from the surface on which the box is supported. In the present inyention, I prov vide folds of the material of the box disposed inwardly at the junction of the flaps and sides. This construction has certain advantages of its own, among which may be mentioned the smooth exterior of the box and the more complete bracing efif'ect of the folds. due to the fact that they are subjected to compression rather than tension when the box is set up.

The various further objects and advantages residing in the invention will more fully appear from the detailed description.

Referring to the drawings illustrating this invention, Figure l is a perspective View partly in section illustrating the box as set up. Fig. 2 a section taken along line of Fig. 1. Fig. 3 is a fragmental sectional plan view illustrating one form of fold in the position assumed when the box is collapsed, the line of bending being formed by a score. Fig. 4: is a similar View of a modified form in which a slot is out along the line of bending of the folds. Fig. 5 is a View also similar to Fig. 3 in which a furrow instead of a slot is cut out of the material of the flaps. Fig. 6 is a fragmental sectional view illustrating a modified form of interior fold. Fig. 7 is a perspec; tive view, partly in section, illustrating a still further modified form of fold.

Referring in detail to Figs. 1 and 2 of the drawings, the box is formed of quadrangir lar sides 10. which may fold upon one another about their scoring meeting edges 11. The box is preferably, though not necessarily made of an integral sheet of any suitable material such as fiber board, corrugated board, or even thin sheet metal. In

Specification of Letters Patent.

Patented Mar. 16, 1915.

Application filed March 3, 1914. Serial No. 822,1ti2.

case the box is made of fibrous material, the usual strip 12 of canvas or other suitable strong flexible material unites the free edges of the sides. a flap 13 extends from each side and at the junction of the flaps and sides at the interior of the box is disposed a fold 14 of substantially 8 form. If the box is made of fibrous material, these folds may be attached to the sides by staples 13*. This fold extends en tirely around the interior perimeter of the To close the ends of the box,

box at the end thereof and forms astiffening and bracing element which reinforces thebox against shockand impact While preserving the smooth flush exterior of the box. By reason also of the disposition of the fold at the interior of the box, the same is compressed endwise to a certain extent at the corners and thus increases the bracing effect.

Any suitable provision may be made for securing the easy bending of the folds when the box is to be set up. In Fig. 3, the stiffness of the material at the corners is broken down by a deep score 15, allowing the material at the corners to be more readily compressed when the box is set up. In Fig. 4, a slot 16 is formed by cutting away a portion of the material at the junction of the fold. In Fig. 5, a furrowfjl'i is substituted for the slot.

In a modified construction illustrated in Fig. 6, a fold H is formed with an interior portion 1-1 of a smaller width terminating with the flaps 13 sunk interiorly of the outer end edge 18 of the sides 10. This edge 1S forms an additional cushion which takes up the shock and impact exerted on the ends of the box.

In the further modified form illustrated in Fig. 7, the sides 10 are provided at their junction with the flaps 13 with a double 8 fold l i extending externally as well as internally of the box, thus providing a lively instead of a three-ply constrluztion, which further strengthens the box and is particularly adaptable for boxes made of Very thin material.

It will be readily seen from the preferred constructions illustrated that I have pro vided a reinforced ;collapsible box in which the reinforcing folds disposed at the junction of the sides and laps may be located y lo for the ends of the box in addition to the strengthening efi'ect.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: p

1. A collapsible box having quadrangular sides and, end flaps forming the closures for the ends of the box and a substantially S shaped fold formed at the junction of the sides and flaps and disposed at the interior of the box for strengthening and bracing the same, the exterior surface of the sides being entirely free from projections.

2. A collapsible box having quadrangular sides and end flaps forming the closures for the-ends'of the-box and a substantially S shaped fold formed about the edges of the sides and projecting inwardly of the box for strengthening and bracing the same, said flaps extending from the folds and concealing the upper edges thereof, said folds beingformed With'a broken down portion at their meeting ends to facilitate the bending thereof.

3. A collapsible boxhavingquadrangular sides, end flaps extending therefrom for forming closures for the ends of the box, a fold formed at the junction of the sides and flaps and disposed at the interior of the box, the flaps extending from the folds interiorly of the end edges of the sides, said end edges forming a projecting cushion for the ends of the box and the folds forming strengthening and bracing means for the ends of the box.

- JOSEPH W. WEISS.

Witnesses:

GEORGE LmMnAoH, GEO. C. MILLER. 

